I love a good healthy discussion, and I would love to see this thread get the attention and level of investigation that the ANH DL-44 has. That being said I can say with 99.9% certainty that the model stopeverything posted pics of is NOT the variation used for ANH. Incorrect clamp lever, incorrect bottom tube, incorrect glass eye.
I really don't want to discourage anybody but when I apply the same nitpicking, as has been done with other props, to figure out every little minute detail about Luke's hero sabers a pattern begins to emerge.
Like Chaim stated the only clear shot of the bottom of a Graflex we have is the wampa cave in ESB, where we see Made by Folmer-Graflex Inc and New York spelled out in full, like the picture in the post above. However, there is one more detail about the wampa cave saber, the THIN lip around the edge, which the above pic does not have. The ANH saber DOES have a thin lip bottom tube though, as seen in the infamous toe pic. Also seen in all of the reference material I've gathered for both ANH and ESB we can see that the clamp lever has a very shiny/polished looking finish, as opposed to the matte finish found on the later model flashes. Additionally we can see that the pin holding the lever to the screw doesn't have a head to it and is darker in color than the lever, again unlike the machined shiny plated pin found on later model flashes. Going even further when you look at the glass eye on the ANH saber the finish is matte not shiny, and the profile seems to be that of the earlier models.
So what am I getting at?
If we cross reference all of the screen shots, bts, and pre/post production shots, although we can't see every specific detail in every shot, there is always at least one or two details that can be seen that point to one very specific variation of Graflex being used. Made by Folmer-Graflex Inc, New York spelled out, thin lipped bottom, shiny/polished lever, non-machined dark lever pin, and the deep dish matte finish glass eye.
Just like this one, which also has the correct red button
This 3-cell matches every reference photo I've found for both ANH and ESB, even when being very skeptical and trying to prove myself wrong
I would LOVE to hear everyone's thoughts